SELECTED FINANCIAL STATEMENT INFORMATION, Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Oct. 31, 2019
Accrued employee compensation and related payroll taxes	$ 83,055	$ 112,602
Deferred revenue	25,631	23,809
Accrued customer rebates and credits	15,813	17,978
Current operating lease liabilities	14,180
Other Liabilities, Current	23,553	24,568
Accrued expenses and other current liabilities	$ 162,232	$ 178,957